Almost everyone has heard something about 2012 being the end of the world because of some ancient calender that ends in 2012. The Mayans were a hi-tech culture for the time, and created an elaborate calender that strangely ended at the year 2012. Many believers think this is a prophesy of sorts foreseeing a time of Armageddon, while others call it a bunch of bull. As usual, our good friend CGPGrey explains the whole situation in simple terms.